Mar 23, 2016 · This reaction is called a base-catalyzed solvolysis in which K 2 CO 3 is the base that catalyzes the solvolysis and MeOH is a solvent that attacks the acyl group and forms methyl acetate...

Download scientific diagram | K2CO3/MeOH mediated deacetylation leading to N2 (deacetyl nimbin) and N3 (deacetylation followed by hydrolysis) from publication: Molecular and Cellular...

Potassium carbonate is a potassium salt of carbonic acid. This salt consists of potassium cations K+ and carbonate anions CO2− 3, and is therefore an alkali metal carbonate. Potassium carbonate is the primary component of potash and the more refined pearl ash or salt of tartar.

Example procedures for the CF3 acetyl deprotection of a compound using K2CO3.

Methoxyethoxymethyl ethers (MEM) R-OH → R-OCH2OCH2CH2OMe stable to base and mild acid Formation: - MeOCH2CH2OCH2Cl, NaH, THF - MeOCH2CH2OCH2Cl, CH2Cl2, iPr2EtNTL 1976, 809 Cleavage - Lewis acids such as ZnBr2, TiCl4, Me2BBr2. C5H11O MEM-O O-Si(Ph)2tBu B S S Cl C5H11O HO O-Si(Ph)2tBu. TL1983 , 24, 3965, 3969.

Jun 29, 2002 · Highly active novel K2CO3 supported on MgFe2O4 magnetic nanocatalyst for low-temperature conversion of waste cooking oil to biodiesel: RSM optimization, kinetic, and thermodynamic studies. Journal of Environmental Chemical Engineering 2023, 11 (5) , 110623. https://doi.org/10.1016/j.jece.2023.110623

Sep 14, 2023 · With some less polar substrate, one can just use K2CO3 slurry in MeOH. If you want nicely anhydrous MeOH, add some Mg turnings and a small pinch of mercury salt (HgCl2 or Hg (OAc)2), reflux it until Mg dissolves (mercury activator ends up reduced as Hg metal) and then redistill the mix, store in a Schlenk storage flask.

(a) K2CO3, MeOH, RT, 8 h, 75%. from publication: Asymmetric total synthesis of filamentous fungi related resorcylic acid lactones 7-epi-zeaenol and zeaenol | An efficient, short and, a...

Sep 5, 2020 · the deprotection with K2CO3 in MeOH is fast (within few minutes) and your ester may get transesterified to methyl ester under these conditions but will not be hydrolyzed if the used MeOH is anhydrous. You can also use KF + K2HPO4 slurry in aqueous MeOH, if you are worried about your ester

CF3-Acetyl groups are very labile to basic hydrolysis and can typically be removed under mild conditions such as K2CO3 in aqueous MeOH at RT. [1] 1) Kocienski, P. J.; Protecting Groups, 3rd Edition. A list of common conditions for CF3 acetyl protection and deprotection reactions in organic chemistry.